* All lighters are pre-filled. Hydro Jet (Green Series) This powerful Jet lighter is wrapped in our custom green series design. Made for longer lasting use. The Hydro Jet lighter is refillable and packs a punch with its jet flame. Available now for recreational use. Please use with caution. Refillable with butane Note: Butane lighters may struggle to function properly at higher altitudes due to decreased air pressure and lower temperatures. Generally, when the altitude reaches about 1,500 meters (approximately 4,900 feet) or higher, butane lighters may start to experience ignition difficulties. This is because as altitude increases, the air pressure drops, leading to a decrease in the vapor pressure of butane, making it harder for butane to vaporize from liquid to gas, thus affecting the lighter's ability to ignite. The impact becomes more pronounced with further increases in altitude.